214 lines
6.9 KiB
C++
214 lines
6.9 KiB
C++
/* Copyright 2013 MultiMC Contributors
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "logic/tasks/Task.h"
|
|
#include "logic/net/NetJob.h"
|
|
|
|
/*!
|
|
* The DownloadUpdateTask is a task that takes a given version ID and repository URL,
|
|
* downloads that version's files from the repository, and prepares to install them.
|
|
*/
|
|
class DownloadUpdateTask : public Task
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
explicit DownloadUpdateTask(QString repoUrl, int versionId, QObject* parent=0);
|
|
|
|
/*!
|
|
* Gets the directory that contains the update files.
|
|
*/
|
|
QString updateFilesDir();
|
|
|
|
public:
|
|
|
|
// TODO: We should probably put these data structures into a separate header...
|
|
|
|
/*!
|
|
* Struct that describes an entry in a VersionFileEntry's `Sources` list.
|
|
*/
|
|
struct FileSource
|
|
{
|
|
FileSource(QString type, QString url, QString compression="")
|
|
{
|
|
this->type = type;
|
|
this->url = url;
|
|
this->compressionType = compression;
|
|
}
|
|
|
|
QString type;
|
|
QString url;
|
|
QString compressionType;
|
|
};
|
|
typedef QList<FileSource> FileSourceList;
|
|
|
|
/*!
|
|
* Structure that describes an entry in a GoUpdate version's `Files` list.
|
|
*/
|
|
struct VersionFileEntry
|
|
{
|
|
QString path;
|
|
int mode;
|
|
FileSourceList sources;
|
|
QString md5;
|
|
};
|
|
typedef QList<VersionFileEntry> VersionFileList;
|
|
|
|
/*!
|
|
* Structure that describes an operation to perform when installing updates.
|
|
*/
|
|
struct UpdateOperation
|
|
{
|
|
static UpdateOperation CopyOp(QString fsource, QString fdest, int fmode=0644) { return UpdateOperation{OP_COPY, fsource, fdest, fmode}; }
|
|
static UpdateOperation MoveOp(QString fsource, QString fdest, int fmode=0644) { return UpdateOperation{OP_MOVE, fsource, fdest, fmode}; }
|
|
static UpdateOperation DeleteOp(QString file) { return UpdateOperation{OP_DELETE, file, "", 0644}; }
|
|
static UpdateOperation ChmodOp(QString file, int fmode) { return UpdateOperation{OP_CHMOD, file, "", fmode}; }
|
|
|
|
//! Specifies the type of operation that this is.
|
|
enum Type
|
|
{
|
|
OP_COPY,
|
|
OP_DELETE,
|
|
OP_MOVE,
|
|
OP_CHMOD,
|
|
} type;
|
|
|
|
//! The file to operate on. If this is a DELETE or CHMOD operation, this is the file that will be modified.
|
|
QString file;
|
|
|
|
//! The destination file. If this is a DELETE or CHMOD operation, this field will be ignored.
|
|
QString dest;
|
|
|
|
//! The mode to change the source file to. Ignored if this isn't a CHMOD operation.
|
|
int mode;
|
|
|
|
// Yeah yeah, polymorphism blah blah inheritance, blah blah object oriented. I'm lazy, OK?
|
|
};
|
|
typedef QList<UpdateOperation> UpdateOperationList;
|
|
|
|
protected:
|
|
friend class DownloadUpdateTaskTest;
|
|
|
|
|
|
/*!
|
|
* Used for arguments to parseVersionInfo and friends to specify which version info file to parse.
|
|
*/
|
|
enum VersionInfoFileEnum { NEW_VERSION, CURRENT_VERSION };
|
|
|
|
|
|
//! Entry point for tasks.
|
|
virtual void executeTask();
|
|
|
|
/*!
|
|
* Attempts to find the version ID and repository URL for the current version.
|
|
* The function will look up the repository URL in the UpdateChecker's channel list.
|
|
* If the repository URL can't be found, this function will return false.
|
|
*/
|
|
virtual void findCurrentVersionInfo();
|
|
|
|
/*!
|
|
* This runs after we've tried loading the channel list.
|
|
* If the channel list doesn't need to be loaded, this will be called immediately.
|
|
* If the channel list does need to be loaded, this will be called when it's done.
|
|
*/
|
|
void processChannels();
|
|
|
|
/*!
|
|
* Downloads the version info files from the repository.
|
|
* The files for both the current build, and the build that we're updating to need to be downloaded.
|
|
* If the current version's info file can't be found, MultiMC will not delete files that
|
|
* were removed between versions. It will still replace files that have changed, however.
|
|
* Note that although the repository URL for the current version is not given to the update task,
|
|
* the task will attempt to look it up in the UpdateChecker's channel list.
|
|
* If an error occurs here, the function will call emitFailed and return false.
|
|
*/
|
|
virtual void loadVersionInfo();
|
|
|
|
/*!
|
|
* This function is called when version information is finished downloading.
|
|
* This handles parsing the JSON downloaded by the version info network job and then calls processFileLists.
|
|
* Note that this function will sometimes be called even if the version info download emits failed. If
|
|
* we couldn't download the current version's info file, we can still update. This will be called even if the
|
|
* current version's info file fails to download, as long as the new version's info file succeeded.
|
|
*/
|
|
virtual void parseDownloadedVersionInfo();
|
|
|
|
/*!
|
|
* Loads the file list from the given version info JSON object into the given list.
|
|
*/
|
|
virtual bool parseVersionInfo(const QByteArray &data, VersionFileList* list, QString *error);
|
|
|
|
/*!
|
|
* Takes a list of file entries for the current version's files and the new version's files
|
|
* and populates the downloadList and operationList with information about how to download and install the update.
|
|
*/
|
|
virtual bool processFileLists(NetJob *job, const VersionFileList ¤tVersion, const VersionFileList &newVersion, UpdateOperationList &ops);
|
|
|
|
/*!
|
|
* Calls \see processFileLists to populate the \see m_operationList and a NetJob, and then executes
|
|
* the NetJob to fetch all needed files
|
|
*/
|
|
virtual void processFileLists();
|
|
|
|
/*!
|
|
* Takes the operations list and writes an install script for the updater to the update files directory.
|
|
*/
|
|
virtual bool writeInstallScript(UpdateOperationList& opsList, QString scriptFile);
|
|
|
|
UpdateOperationList m_operationList;
|
|
|
|
VersionFileList m_nVersionFileList;
|
|
VersionFileList m_cVersionFileList;
|
|
|
|
//! Network job for downloading version info files.
|
|
NetJobPtr m_vinfoNetJob;
|
|
|
|
//! Network job for downloading update files.
|
|
NetJobPtr m_filesNetJob;
|
|
|
|
// Version ID and repo URL for the new version.
|
|
int m_nVersionId;
|
|
QString m_nRepoUrl;
|
|
|
|
// Version ID and repo URL for the currently installed version.
|
|
int m_cVersionId;
|
|
QString m_cRepoUrl;
|
|
|
|
/*!
|
|
* Temporary directory to store update files in.
|
|
* This will be set to not auto delete. Task will fail if this fails to be created.
|
|
*/
|
|
QTemporaryDir m_updateFilesDir;
|
|
|
|
/*!
|
|
* Filters paths
|
|
* Path of the format $PWD/path, it is converted to a file:///$PWD/ URL
|
|
*/
|
|
static QString preparePath(const QString &path);
|
|
|
|
protected slots:
|
|
void vinfoDownloadFinished();
|
|
void vinfoDownloadFailed();
|
|
|
|
void fileDownloadFinished();
|
|
void fileDownloadFailed();
|
|
void fileDownloadProgressChanged(qint64 current, qint64 total);
|
|
|
|
void directDeployFile(const int index);
|
|
};
|
|
|